title: Susceptibility of quagga mussels (Dreissena rostriformis bugensis) to hot-water sprays as a means of watercraft decontamination.
abstract: The recent spread of dreissenid mussels to various bodies of water in the western US has sparked interest by many state and federal agencies to develop protocols to stop further expansion. Quagga mussels (Dreissena rostriformis bugensis) are of particular importance as they are currently the most widespread dreissenid species in the region. This project examined the susceptibility of quagga mussels to hot-water sprays at different temperatures and durations of spray contact at Lake Mead (Nevada-Arizona, USA). Emersed adult quagga mussels were exposed to hot-water sprays at 20, 40, 50, 54, 60, 70, and 80°C for 1, 2, 5, 10, 20, 40, 80, and 160 s. Sprays at ≥60°C for 5 s were shown to be 100% lethal. Sprays of 54°C for 10 s, 50°C for 20 s, and 40°C for 40 s also resulted in 100% mortality. A spray temperature of 60°C for 5 s is recommended for mitigating fouling by quagga mussels.
authors.affiliation: Department of Environmental and Occupational Health, University of Nevada, Las Vegas, NV, USA.
authors.forename: Sean
authors.initials: S
authors.lastname: Comeau
authors.forename: Scott
authors.initials: S
authors.lastname: Rainville
authors.forename: Wen
authors.initials: W
authors.lastname: Baldwin
authors.forename: Emily
authors.initials: E
authors.lastname: Austin
authors.forename: Shawn
authors.initials: S
authors.lastname: Gerstenberger
authors.forename: Chad
authors.initials: C
authors.lastname: Cross
authors.forename: Wai Hing
authors.initials: WH
authors.lastname: Wong
mesh_terms: D000818:Animals; D001130:Arizona; D057219:Biofouling / Q000517:prevention & control; D003666:Decontamination / Q000379:methods*; D049875:Dreissena / Q000187:drug effects* / Q000502:physiology*; D006358:Hot Temperature; D009505:Nevada; D014867:Water / Q000737:chemistry / Q000494:pharmacology*
chemical_list: D014867:Water